Control arm end

Abstract

An arm end for a trailing arm, in particular for commercial vehicles, comprising a main body which configures a working volume for an air spring system, the main body having an access region which is designed to provide an access into the working volume, characterized in that a large part of the working volume is configured substantially below the access region.

1 .- 13 . (canceled) 
     
     
         14 . An arm end for a trailing arm comprising:
 a main body which defines a working volume for an air spring system, the main body having an access region configured to provide an access into the working volume;   wherein part of the working volume is configured substantially below the access region, the main body includes a closed hollow body, and wherein the hollow body is hydroformed.   
     
     
         15 . The arm end as claimed in  claim 14 , wherein the main body is a closed hollow body. 
     
     
         16 . The arm end as claimed in  claim 14 , wherein the main body includes a lower section opposite the access region, and the lower section is spaced apart from the access region by more than 5 cm. 
     
     
         17 . The arm end as defined in  claim 16 , wherein the lower section is spaced apart from the access region by more than 8 cm. 
     
     
         18 . The arm end as defined in  claim 17 , wherein the lower section is spaced apart from the access region by more than 10 cm. 
     
     
         19 . The arm end as claimed in  claim 14 , wherein the lower section comprises a support face which is configured to arrange the arm end on a trailing arm. 
     
     
         20 . The arm end as claimed in  claim 14 , wherein the main body includes a front section configured as a support or arranging face that includes a substantially horizontal outer wall configured to be arranged on and fastened to a trailing arm. 
     
     
         21 . The arm end as claimed in  claim 14 , further comprising:
 a valve unit that includes a clamping plate having a multiplicity of valve openings.   
     
     
         22 . The arm end as defined in  claim 21 , wherein the multiplicity of valve openings includes at least four valve opening. 
     
     
         23 . The arm end as claimed in  claim 21 , wherein the valve unit comprises an upper valve flap and a lower valve flap, and wherein the upper and lower flaps are arranged such that different valve openings of the multiplicity of valve openings can be opened and closed. 
     
     
         24 . The arm end as claimed in  claim 21 , wherein the valve unit comprises a guide element configured such that the multiplicity of valve flaps are configured to move along the guide element. 
     
     
         25 . The arm end as claimed  claim 21 , wherein the valve flaps bear against the clamping plate in a basic position such that the valve openings are closed. 
     
     
         26 . The arm end as claimed in  claim 21 , wherein the valve unit comprises a spring element which prestresses the multiplicity of valve flaps. 
     
     
         27 . The arm end as claimed in  claim 21 , wherein each of the multiplicity of flaps of the valve flaps includes two blades. 
     
     
         28 . A trailing arm for commercial vehicles comprising an arm end as claimed in  claim 14 . 
     
     
         29 . The trailing arm as claimed in  claim 28 , wherein the trailing arm and the arm end are configured in one piece.